SOME IRREGULAR VARIATIONS OF THE ELECTRON DENSITY IN THE TOPSIDE OF THE IONOSPHERE.
Abstract
Distributions of electron number density between the peak of the F layer and 1000 km height, for the region between 80 N and 70 S latitude at about 75 W longitude, are presented for a variety of local times. From such distributions it is shown that: (1) Large scale irregularities are typical of the polar ionosphere at invariant magnetic latitudes greater than 70 at all times of day. (2) At low latitudes a diurnal change in the electron scale height at 800 km above ground is typical of the ionosphere at low latitudes; this is indicative of a diurnal change in the ionic composition of the F layer. The results are given of a study of the topside ionosphere during the geomagnetic storm of September 21, 1963. The behaviour of the maximum electron density of the F layer during the storm is compared with the behaviour for a quiet day period for a wide range of latitudes. During storms large deviations from mean values of electron density occur over the range of invariant latitudes from 25 to 70; during quiet days there occur only minor deviations in this region. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1964
- Accession Number
- AD0616859
Entities
People
- E. S. Warren
- G. L. Nelms
Organizations
- Communications Research Centre Canada